Main Filter for CT 17

Functions

A replacement main filter element for the Festool CT 17 mobile dust extractor — the smaller, lighter-format CT extractor designed for portable work on site. The filter captures fine dust and particulates from the airstream, returning clean exhaust air to the workspace and protecting the motor from contamination. Use this filter when the original starts to load with dust and extractor airflow drops noticeably. Replacing the filter restores the CT 17 to its specified suction performance — important because reduced airflow doesn't just mean slower cleanup, it means the dust-controlled cutting and sanding tools the extractor is paired with start losing their dust-control performance too. A genuine Festool replacement filter, manufactured to the original specification of the CT 17. Tradespeople who use the CT 17 as their portable site extractor keep a spare on the shelf so a clogged filter never costs more than a minute on the job — the alternative is running tools at reduced extraction performance, which defeats the whole reason the CT 17 is in the kit.